边界振动的微腔中薛定谔猫态的产生

Preparation of Schrdinger cat states in a cavity with a moving mirror

采用全量子理论,考虑了边界振动的微腔(振动边界视作频率为ωm的量子谐振子)与单模辐射场构成的系统,在薛定谔绘景中,给出了系统的时间演化算符,得到了系统的态函数随时间的演化关系.结果表明,当振动边界回到初态时的腔场态能给出许多与已有文献不同的薛定谔猫态,且通过调整单模辐射场的频率可以选择想要的薛定谔猫态.

For a system composed of a cavity with a movable mirror （treated as a quantum harmonic oscillator with frequency ωm） and a single mode field in the cavity, the time evolution operator of the system is given, which is obtained by means of full quantum theory in the Schrodinger picture. The result shows that the state of the cavity field at the moment can give a variety of muhicomponent Schrodinger cat states when the mirror returns to its original state, which are different from those in the published literature, and the desired Schrodinger cat state can be chosen by adjusting the frequency of the single mode cavity field.